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1. 发明申请

US20110135418A1 SELF EXPANDING FASTENER 有权
标题翻译：自扩张紧固件
公开(公告)号：US20110135418A1
公开(公告)日：2011-06-09
申请号：US12632604
申请日：2009-12-07
申请人： Brad L. Kirkwood , Lee C. Firth , Richard D. Widdle , Wesley B. Crow
发明人： Brad L. Kirkwood , Lee C. Firth , Richard D. Widdle , Wesley B. Crow
IPC分类号： F16B13/04 , B23P11/00
CPC分类号： F16B13/04 , F16B1/0014 , F16B3/00 , Y10T29/49865 , Y10T29/49954
摘要： In one embodiment a method to join a first structure to a second structure, comprises aligning a first hole in the first structure with a second hole in the second structure and inserting a fastener into the first hole and the second hole. The fastener comprises a shape memory alloy which was formed into a first shape having a diameter slightly larger than a diameter of the first hole and the second hole when the shape memory alloy was in an austenite state and reduced to a second shape having a diameter less than the diameter of the first hole and the second hole when the shape memory alloy was in a martensite state. The method further comprises heating the fastener above an austenite start transition temperature, such that the fastener initiates free expansion from the second shape back to the first shape and establishes physical contact with the surface of the first hole and the second hole and continuing to heat the fastener such that first structure and the second structure proximate the holes and the fastener undergo plastic deformation.
摘要翻译：在一个实施例中，将第一结构连接到第二结构的方法包括将第一结构中的第一孔与第二结构中的第二孔对准，并将紧固件插入第一孔和第二孔中。紧固件包括形状记忆合金，其形状为第一形状，其形状记忆合金处于奥氏体状态时，直径略大于第一孔的直径，第二孔缩小至直径较小的第二形状比形状记忆合金处于马氏体状态时的第一孔和第二孔的直径大。该方法还包括将紧固件加热到高于奥氏体起始转变温度，使得紧固件开始从第二形状到第一形状的自由膨胀，并且与第一孔和第二孔的表面建立物理接触，并且继续加热紧固件使得第一结构和靠近孔和紧固件的第二结构经历塑性变形。

2. 发明授权

US08388292B2 Self expanding fastener 有权
标题翻译：自扩张紧固件
公开(公告)号：US08388292B2
公开(公告)日：2013-03-05
申请号：US12632604
申请日：2009-12-07
申请人： Brad L. Kirkwood , Lee C. Firth , Richard D. Widdle , Wesley B. Crow
发明人： Brad L. Kirkwood , Lee C. Firth , Richard D. Widdle , Wesley B. Crow
IPC分类号： F16B21/00
CPC分类号： F16B13/04 , F16B1/0014 , F16B3/00 , Y10T29/49865 , Y10T29/49954
摘要： In one embodiment a method to join a first structure to a second structure, comprises aligning a first hole in the first structure with a second hole in the second structure and inserting a fastener into the first hole and the second hole. The fastener comprises a shape memory alloy which was formed into a first shape having a diameter slightly larger than a diameter of the first hole and the second hole when the shape memory alloy was in an austenite state and reduced to a second shape having a diameter less than the diameter of the first hole and the second hole when the shape memory alloy was in a martensite state. The method further comprises heating the fastener above an austenite start transition temperature, such that the fastener initiates free expansion from the second shape back to the first shape and establishes physical contact with the surface of the first hole and the second hole and continuing to heat the fastener such that first structure and the second structure proximate the holes and the fastener undergo plastic deformation.
摘要翻译：在一个实施例中，将第一结构连接到第二结构的方法包括将第一结构中的第一孔与第二结构中的第二孔对准，并将紧固件插入第一孔和第二孔中。紧固件包括形状记忆合金，其形状为第一形状，其形状记忆合金处于奥氏体状态时直径略大于第一孔和第二孔的直径，并减小为直径较小的第二形状比形状记忆合金处于马氏体状态时的第一孔和第二孔的直径大。该方法还包括将紧固件加热到高于奥氏体起始转变温度，使得紧固件开始从第二形状到第一形状的自由膨胀，并且与第一孔和第二孔的表面建立物理接触，并且继续加热紧固件使得第一结构和靠近孔和紧固件的第二结构经历塑性变形。

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